USN-2951-1: OptiPNG vulnerabilities

18 April 2016

optipng vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 15.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS

Summary

OptiPNG could be made to crash or run programs as your login if it opened a specially crafted file.

Software Description

  • optipng - advanced PNG (Portable Network Graphics) optimizer

Details

Gustavo Grieco discovered that OptiPNG incorrectly handled memory. A remote attacker could use this issue with a specially crafted image file to cause OptiPNG to crash, resulting in a denial of service. (CVE-2015-7801)

Gustavo Grieco discovered that OptiPNG incorrectly handled memory. A remote attacker could use this issue with a specially crafted image file to cause OptiPNG to crash, resulting in a denial of service. (CVE-2015-7802)

Hans Jerry Illikainen discovered that OptiPNG incorrectly handled memory. A remote attacker could use this issue with a specially crafted image file to cause OptiPNG to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-2191)

Henri Salo discovered that OptiPNG incorrectly handled memory. A remote attacker could use this issue with a specially crafted image file to cause OptiPNG to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-3981)

Henri Salo discovered that OptiPNG incorrectly handled memory. A remote attacker could use this issue with a specially crafted image file to cause OptiPNG to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-3982)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 15.10
optipng - 0.7.5-1ubuntu0.1
Ubuntu 14.04 LTS
optipng - 0.6.4-1ubuntu0.14.04.1
Ubuntu 12.04 LTS
optipng - 0.6.4-1ubuntu0.12.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References